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Transcript
```CONCEPT MAP
GEOMETRY
August 2011
Suggested Sequence:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Tools of Geometry
Reasoning and Proof
Parallel and Perpendicular Lines
Congruent Triangles
Relationships Within Triangles
Similarity
Right Triangles and Trigonometry
Transformations
Area
Surface Area and Volume
Circles
GEOMETRY
Prioritized Curriculum
CSOs
M.O.G.3.1
M.O.G.3.2
M.O.G.3.3
M.O.G.3.4
M.O.G.3.5
M.O.G.3.6
M.O.G.3.7
M.O.G.3.8
M.O.G.3.9
M.O.G.3.10
M.O.G.3.11
M.O.G.3.12
M.O.G.3.13
M.O.G.3.14
M.O.G.3.15
M.O.G.3.16
M.O.G.3.17
M.O.G.3.18
M.O.G.3.19
M.O.G.3.20
M.O.G.3.21
Essential
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Important
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Need to Know
Tools of Geometry
Key Concepts:
• Nets and Drawings for
Visualizing Geometry
• Points, Lines, and Planes
• Measuring Segments
• Measuring Angles
• Exploring Angle Pairs
• Basic Constructions
• Midpoint and Distance in
the Coordinate Plane
• Perimeter, Circumference,
and Area
Key Vocabulary:
CSOs: G.3.1, G.3.8, G.3.17,
G.3.21
Estimated days to complete: 8
Enduring Understanding:
Students will be introduced to
various topics in the study of
geometry.
Essential Question(s):
• How can you represent a
three-dimensional figure
with a two-dimensional
drawing?
• What are the building
blocks of geometry?
• How can you describe the
attributes of a segment or
angle?
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Acute, right, obtuse, straight
angles
Angle bisector
Collinear points, coplanar
points
Complementary and
supplementary angles
Congruent angles
Congruent segments
Constructions
Linear pair
Measure of an angle
Net
Perpendicular bisector
Perpendicular lines
Point, line, plane
Postulate, axiom
Ray, opposite rays
Segment
Segment bisector
Vertex of an angle
Vertical angles
Reasoning and Proof
Key Concepts:
• Patterns and Inductive
Reasoning
• Conditional Statements
• Biconditionals and
Definitions
• Deductive Reasoning
• Reasoning in Algebra and
Geometry
• Proving Angles Congruent
Key Vocabulary:
CSOs: G.3.2, G.3.3, G.3.4, G.3.5,
G.3.7
Estimated days to complete: 5
Enduring Understanding:
Students will be introduced to
topics related to reasoning
including deductive and inductive
reasoning.
Essential Question(s):
• How can you make a
conjecture and prove that
it is true?
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Biconditional
Conclusion
Conditional
Conjecture
Contrapositive
Converse
Counterexample
Deductive reasoning
Equivalent statements
Hypothesis
Inductive reasoning
Inverse
Law of detachment
Law of syllogism
Negation
Paragraph proof
Proof
Theorem
Truth value
Two-column proof
Key Concepts:
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Lines and Angles
Properties of Parallel Lines
Proving Lines Parallel
Parallel and Perpendicular
Lines
Parallel Lines and Triangles
Constructing Parallel and
Perpendicular Lines
Equations of Lines in the
Coordinate Plane
Slopes of Parallel and
Perpendicular
Parallel and Perpendicular
Lines
CSOs: G.3.1, G.3.4, G.3.5, G.3.6,
G.3.14, G.3.19, G.3.20
Estimated days to complete: 8
Enduring Understanding:
Students will expand upon their
understanding of skills related to
parallel and perpendicular lines.
Essential Question(s):
• How do you prove that
two lines are parallel or
perpendicular?
• What is the sum of the
measures of the angles of
a triangle?
• How do you write an
equation of a line in the
coordinate plane?
Key Vocabulary:
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Alternate exterior angles
Alternate interior angles
Auxiliary line
Corresponding angles
Exterior angle of a polygon
Flow proof
Parallel lines
Parallel planes
Point-slope form
Remote interior angles
Same-side interior angles
Skew lines
Slope
Slope-intercept form
Transversal
Congruent Triangles
Key Concepts:
• Congruent Figures
• Triangle Congruence by
SSS and SAS
• Triangle Congruence by
ASA and AAS
• Using Corresponding Parts
of Congruent Triangles
• Isosceles and Equilateral
Triangles
• Congruence in Right
Triangles
• Congruence in Overlapping
Triangles
Key Vocabulary:
CSOs: G.3.5, G.3.7
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Estimated days to complete: 7
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Enduring Understanding:
Students will build upon their
understanding and skills related
to angles and triangles.
Essential Question(s):
• How do you identify
corresponding parts of
congruent triangles?
• How do you show that two
triangles are congruent?
• How can you tell whether
a triangle is isosceles or
equilateral?
Base angles of an isosceles
triangle
Base of an isosceles triangle
Congruent polygons
Corollary
Hypotenuse
Legs of an isosceles triangle
Legs of a right triangle
Vertex angles of an isosceles
triangle
Key Concepts:
• Midsegments of Triangles
• Perpendicular and Angle
Bisectors
• Bisectors in Triangles
• Medians and Altitudes
• Indirect Proof
• Inequalities in One Triangle
• Inequalities in Two
Triangles
Relationships Within
Triangles
CSOs: G.3.5, G.3.10, G.3.18
Estimated days to complete: 6
Enduring Understanding:
Students will identify the unique
properties of triangles.
Essential Question(s):
• How do you use
coordinate geometry to
find relationships within
triangles?
• How do you solve
problems that involve
measurements of
triangles?
• How do you write indirect
proofs?
Key Vocabulary:
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Altitude of a triangle
Centroid of a triangle
Circumcenter of a triangle
Concurrent
Distance from a point to a line
Equidistant
Incenter of a triangle
Indirect proof
Indirect reasoning
Inscribed
Median of a triangle
Midsegment of a triangle
Orthocenter of a triangle
Point of concurrency
Key Concepts:
• The Polygon Angle-Sum
Theorem
• Properties of Parallelogram
• Proving that a
Parallelogram
• Properties of Rhombuses,
Rectangles, and Squares
• Conditions for Rhombuses,
Rectangles, and Squares
• Trapezoids and Kites
• Polygons in the Coordinate
Plane
• Applying Coordinate
Geometry
• Proofs Using Coordinate
Geometry
Key Vocabulary:
CSOs: G.3.4, G.3.5, G.3.8,
G.3.14, G.3.17
Estimated days to complete: 8
Enduring Understanding:
Students will identify the unique
properties of triangles.
Essential Question(s):
• How do you use
coordinate geometry to
find relationships within
triangles?
• How do you solve
problems that involve
measurements of
triangles?
• How do you write indirect
proofs?
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Base, base angle, and leg of a
trapezoid
Consecutive angles
Coordinate proof
Equiangular, equilateral
polygon
Isosceles trapezoid
Kits
Midsegment of a trapezoid
Opposite angles
Opposite sides
Parallelogram
Rectangle
Regular polygon
Rhombus
Square
trapezoid
Similarity
Key Concepts:
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Ratios and Proportions
Similar Polygons
Proving Triangles Similar
Similarity in Right Triangles
Proportions in Triangles
Key Vocabulary:
CSOs: G.3.4, G.3.5, G.3.9,
G.3.11, G.3.19
Estimated days to complete: 5
Enduring Understanding:
Students will expand upon their
understanding and skills related
to similarity.
Essential Question(s):
• How do you use
proportions to find side
lengths in similar
polygons?
• How do you show two
triangles are similar?
• How do you identify
corresponding parts of
similar triangles?
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Extended proportion
Extended ratio
Extremes
Geometric mean
Indirect measurement
Means
Proportion
Ratio
Scale drawings
Scale factor
Similar figures
Similar polygons
Key Concepts:
• The Pythagorean Theorem
and its Converse
• Special Right Triangles
• Trigonometry
• Angles of Elevation and
Depression
• Vectors
Right Triangles and
Trigonometry
CSOs: G.3.11, G.3.12
Estimated days to complete: 6
Enduring Understanding:
Students will explore concepts
related to right triangles,
including trigonometry.
Essential Question(s):
• How do you find a side
length or angle measure in
a right triangle?
• How do trigonometric
ratios relate to similar right
triangles?
• What is a vector?
Key Vocabulary:
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Angle of depression
Angle of elevation
Cosine
Initial point
Magnitude
Pythagorean triple
Resultant
Sine
Tangent
Terminal point
Trigonometric ratios
Vector
Transformations
Key Concepts:
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Translations
Reflections
Rotations
Symmetry
Dilations
Compositions of
Reflections
• Tessellations
CSOs: G.3.15, G.3.19
Estimated days to complete: 6
Enduring Understanding:
Students will explore the
concepts related to
transformations.
Essential Question(s):
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How can you change a figure’s
position without changing its
size and shape?
How can you change a figure’s
size without changing its
shape?
How can you represent a
transformation in the
coordinate plane?
How do you recognize
symmetry in a figure?
Key Vocabulary:
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Center of a regular polygon
Composition of transformations
Dilation
Glide reflection
Glide reflectional symmetry
Image
Isometry
Line symmetry
Preimage
Reflection
Rotation
Rotational symmetry
Tessellation
Transformation
Translation
Translational symmetry
Area
Key Concepts:
• Areas of Parallelograms
and Triangles
• Areas of Trapezoids,
Rhombuses, and Kites
• Areas of Regular Polygons
• Perimeters and Areas of
Similar Figures
• Trigonometry and Area
• Circles and Arcs
• Areas of Circles and
Sectors
• Geometric Probability
Key Vocabulary:
CSOs: G.3.8, G.3.9, G.3.11,
G.3.13
Estimated days to complete: 7
Enduring Understanding:
Students will identify the unique
properties of triangles.
Essential Question(s):
• How do you find the area
of a polygon or find the
circumference and area of
a circle?
• How do perimeters and
areas of similar polygons
compare?
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Altitude
Apothem
Arc length
Base
Central angle
Circle
Circumference
Concentric circles
Congruent arcs
Congruent circles
Diameter
Geometric probability
Height
Major arc
Minor arc
Sector of a circle
Segment of a circle
semicircle
Surface Area and Volume
Key Concepts:
• Space Figures and Cross
Sections
• Surface Areas of Prisms
and Cylinders
• Surface Areas of Pyramids
and Cones
• Volumes of Prisms and
Cylinders
• Volumes of Pyramids and
Cones
• Surface Areas and Volumes
of Spheres
• Areas and Volumes of
Similar Solids
Key Vocabulary:
CSOs: G.3.9, G.3.16
Estimated days to complete: 8
Enduring Understanding:
Students will find surface areas
and volumes of solid figures.
Essential Question(s):
• How can you determine
the intersection of a solid
and a plane?
• How do you find the
surface area and volume of
a solid?
• How do the surface areas
and volumes of similar
solids compare?
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Altitude
Center of a sphere
Cone
Cross section
Cylinder
Edge
Face great circle
Hemisphere
Lateral area
Lateral face
Polyhedron
Prism
Pyramid
Right cone
Right cylinder
Right prism
Slant height
Sphere
Surface area
volume
Circles
Key Concepts:
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Tangent Lines
Chords and Arcs
Inscribed Angles
Angle Measures and
Segment Lengths
• Circles in the Coordinate
Plane
• Locus: A Set of Points
Key Vocabulary:
CSOs: G.3.13
Estimated days to complete: 5
Enduring Understanding:
Students will explore concepts
related to circles.
Essential Question(s):
• How can you prove
relationships between
angles and arcs in a circle?
• When lines intersect a
circle, or within a circle,
how do you find the
measures of resulting
angles, arcs, and
segments?
• How do you find the
equation of a circle in the
coordinate plane?
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Chord
Inscribed angle
Intercepted arc
Locus
Point of tangency
Secant
Standard form of an equation
of a circle
Tangent to a circle
```